In addition to the current source, the detecting instrument mainly contains the circuits for temperature compensation, pulse formation, pulse duration discrimination and encode, decode.
检测仪器除了恒流源外，主要还有温度补偿、脉冲形成、脉宽鉴别以及编码、译码等电路。
A fibre-optoelectrical sensor is used for detecting realtime depth of weldpool during welding process and pulse current duration is adjusted dependent on the detect depth of weldpool.
该控制系统采用光纤光电传感器检测焊接过程中焊缝的实时熔池深度，并据此调节脉冲焊接电流宽度。
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